A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6620-01-147-5615
NSN 5985-01-295-9019
NSN 5920-01-093-3022
NSN 5975-00-936-7377
NSN 5930-01-056-6505
NSN 6110-01-467-2882
NSN 5999-00-765-3035
NSN 5835-01-416-6455
NSN 6240-01-116-1275
NSN 5999-00-207-9849
NSN 5965-00-636-4926
NSN 6135-00-299-6918